60
9.2.9 P2: High Temperature Protection of Compressor Top
Condition: The sampling voltage is not 5V.
Possible Causes:
- Power supply faulty
- Refrigerant system faulty (i.e. leakage/blockage)
- PCB faulty
Check the air flow system
of indoor and outdoor units
Clear up the air inlet and outlet or the heat
exchanger of indoor and outdoor units.
Yes
No
Yes
Yes
Power off, then restart the unit 10
minutes later
Check if the temperature
of compressor
No
Check refrigerant system
Yes
Check the overload
protector
Correct the connection.
No
Measure the resistance
between the two ports of
the OLP. Is it zero?
Yes
Replace the OLP.
No
Replace the outdoor control PCB.
Yes
Check if the temp. of compressor
top is more than 194°F
Summary of Contents for 12H47YIMI
Page 10: ...10 1080 mm 226 mm 335 mm 30H48ZIMI 49 57 1259 mm 11 1 282 mm 14 25 362 mm 36H46ZIMI...
Page 19: ...19 Model Voltage V Capacity BTU Type 12H47ZOMI 230 12 000 HEAT PUMP...
Page 56: ...56 P W N U...
Page 57: ...57 N V N W...
Page 82: ...82 7 Then lift the PCB assembly off the unit NOTE All wires are still connected...
